This is a real puzzler. Suddenly, for no apparent reason, my ST2421L monitor displayed black bars around the screen image (doesn't matter if it is the desktop or a browser or MS Word). Seriously, when I started work in the morning, everything was normal. I blinked and then there were black bars.
I've done some searching at the support forums and one suggestion was to install something called AMD Catalyst Suite. When I tried to do that, it ran and then the dreaded blue screen appeared.
Using control panel, I checked to see if Windows felt the drivers for the monitor were up to date and they were. I've also gone through the factory reset via the OSD, unplugged the monitor's power and its HDMI cable, etc.
Any suggestions would be greatly appreciated. Thanks in advance!
John
Monitor Details:
CN-OTPDTP-74261-3AT-OW2U
Dell 570
Win 7 64 bit
ATI Radeon HD 4200 version 8.850.0.0 HDMI, VGA
HDMI to HDMI
HDMI
1080p
Purchased from Dell